[ESLint] Fix violations when enabling curly rule in eslint.

tracing/tracing/ui/base/ui_state_test.html

Index: tracing/tracing/ui/base/ui_state_test.html
diff --git a/tracing/tracing/ui/base/ui_state_test.html b/tracing/tracing/ui/base/ui_state_test.html
index 91ee74eda1ad55a81d701480ee2e2cd3244cbed6..cf2e4d96716e6ce7311ec7ed5d788bfb6d4b14e8 100644
--- a/tracing/tracing/ui/base/ui_state_test.html
+++ b/tracing/tracing/ui/base/ui_state_test.html
@@ -6,8 +6,8 @@ found in the LICENSE file.
 -->
 
 <link rel="import" href="/tracing/core/test_utils.html">
-<link rel="import" href="/tracing/ui/tracks/track.html">
 <link rel="import" href="/tracing/ui/base/ui_state.html">
+<link rel="import" href="/tracing/ui/tracks/track.html">
 
 <script>
 'use strict';
@@ -42,8 +42,9 @@ tr.b.unittest.testSuite(function() {
     this.containerToTrackMap = {
       // "1.2" is the only valid stableId this test function accepts.
       getTrackByStableId: function(stableId) {
-        if (stableId === '1.2')
+        if (stableId === '1.2') {
           return new FakeTrack;
+        }
         return undefined;
       }
     };